QwtSplineCurveFitter Class Reference

A curve fitter using a spline interpolation. More...

#include <qwt_spline_curve_fitter.h>

Inheritance diagram for QwtSplineCurveFitter:

Public Member Functions
	QwtSplineCurveFitter ()
	Constructor.
	~QwtSplineCurveFitter () override
	Destructor.
void	setSpline (QwtSpline *)
	Assign a spline.
const QwtSpline *	spline () const
	Get the spline (const version)
QwtSpline *	spline ()
	Get the spline (non-const version)
virtual QPolygonF	fitCurve (const QPolygonF &) const override
	Find a curve which has the best fit to a series of data points.
virtual QPainterPath	fitCurvePath (const QPolygonF &) const override
	Find a curve path which has the best fit to a series of data points.
Public Member Functions inherited from QwtCurveFitter
virtual	~QwtCurveFitter ()
	Destructor.
Mode	mode () const
	Get the preferred fitting mode.

Additional Inherited Members
Public Types inherited from QwtCurveFitter
enum	Mode { Polygon , Path }
	Preferred mode of the fitting algorithm. More...
Protected Member Functions inherited from QwtCurveFitter
	QwtCurveFitter (Mode mode)
	Constructor.

Detailed Description

A curve fitter using a spline interpolation.

The default setting for the spline is a cardinal spline with uniform parametrization.

See also

QwtSpline, QwtSplineLocal

Constructor & Destructor Documentation

QwtSplineCurveFitter()

QwtSplineCurveFitter::QwtSplineCurveFitter

(

)

Constructor.

Creates a spline curve fitter with a cardinal spline using uniform parametrization.

~QwtSplineCurveFitter()

QwtSplineCurveFitter::~QwtSplineCurveFitter ( )

override

Destructor.

Deletes the internal spline object.

Member Function Documentation

fitCurve()

QPolygonF QwtSplineCurveFitter::fitCurve ( const QPolygonF &  points ) const

overridevirtual

Find a curve which has the best fit to a series of data points.

Parameters

points

Series of data points

Returns

Fitted Curve

See also

fitCurvePath()

Implements QwtCurveFitter.

fitCurvePath()

QPainterPath QwtSplineCurveFitter::fitCurvePath ( const QPolygonF &  points ) const

overridevirtual

Find a curve path which has the best fit to a series of data points.

Parameters

points

Series of data points

Returns

Fitted Curve

See also

fitCurve()

Implements QwtCurveFitter.

setSpline()

void QwtSplineCurveFitter::setSpline

(

QwtSpline *

spline

)

Assign a spline.

The spline needs to be allocated by new and will be deleted in the destructor of the fitter.

Parameters

spline

Spline

See also

spline()

spline() [1/2]

QwtSpline * QwtSplineCurveFitter::spline

(

)

Get the spline (non-const version)

Returns

Spline

See also

setSpline()

spline() [2/2]

const QwtSpline * QwtSplineCurveFitter::spline

(

)

const

Get the spline (const version)

Returns

Spline

See also

setSpline()

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The documentation for this class was generated from the following files:

• /home/runner/work/QWT/QWT/src/plot/qwt_spline_curve_fitter.h
• /home/runner/work/QWT/QWT/src/plot/qwt_spline_curve_fitter.cpp